 - Use the magic for ___sigreturn in __sigset.  - In __sigreturn call sigprocmask() to restore our signal state rather than    returning through sigreturn().  jmp to ___sigreturn to restore our register    state following this.
 - Use the magic for ___sigreturn in __sigset.
 - In __sigreturn call sigprocmask() to restore our signal state rather than
   returning through sigreturn().  jmp to ___sigreturn to restore our register
   state following this.

Requested by:	pete

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase